Dont Waste Your Money - App Wont Work!

I just downloaded this app and it will not work at all- keeps crashing after the opening screen. I deleted it then reinstalled and the same thing keeps happening. If I JUST downloaded it for the first time it should be the latest version. Total piece of junk. How do I get my money back since I cant use this app AT ALL????

FreqAppUser00 about Black Book iUsedCar, v1.18